Coda AMPLIFIER 15.0 Guía de usuario descargar pdf (Pagina 14)

Charnwood Dynamics Ltd. Coda cx1 User Guide – Coda Basics I - 1

CX1 USER GUIDE - COMPLETE.doc 26/04/04

14/162

This cable should be plugged into the correspondingly marked sockets on the mini hub

bulk head or Quad UART board and Coda scanner unit bulk head respectively.

Front Panel

On the front of each Coda scanner unit there are two LED indicator lights. The green LED

signifies that the power is on. The yellow LED becomes illuminated only when the

scanner unit is actively acquiring marker position data under control of the computer.

Adjacent to the yellow LED is a small window of black IR transmitting glass. Behind this

window are mounted IR emitting LEDs which send out coded pulses of infra-red light to

the markers which are attached to the subject. These coded pulses control the time at

which each marker emits its flash of infra-red light.

Computer

The host computer specification depends on the type of Codamotion system being

considered. More specifically, it depends on whether the Coda cx1 scanner is operated

through a mini hub unit or an active hub unit.

Computer Specification – Mini Hub Operation

When the Coda scanner is operated with a mini hub unit, the host computer can be any

standard desktop or laptop machine running Microsoft Windows 98, NT, ME, 2000 or XP.

A processor speed of at least 500MHz is recommended.

The host PC must have one serial port interface for each Coda cx1 unit; these can be RS-

232 or RS-422.

Standard RS-232 serial port(s) (normally COM1, COM2) are limited in speed (115k-baud

max) and would normally be used only for a single Coda system. The RS-232 cable must

be less than 10m in length. (The RS-232 cable is non-standard and must be supplied by

Charnwood Dynamics [a jumper is required at the mini hub end].)

RS-422 serial interfaces operate at up to 40 times faster than RS-232 (up to 5M-baud),

and can use longer cables. They are provided by adding a (third party) interface card to

the host PC (PCI), or by the addition of a PCMCIA type II adapter to a laptop computer.

One or two PCI cards can be installed to provide two or four RS-422 interfaces to support

up to four Coda cx1 scanner units. Similarly, one or two PCMCIA adapters can provide

two or four RS-422 interfaces on a laptop, but these are limited to 1M-baud. Special

drivers (from the card manufacturers) must be installed to use RS-422 interfaces which

then appear as standard COM ports - usually COM3, COM4, etc.

When two Coda cx1 units are connected to one mini hub unit, both units must be operated

on the same type of serial interface – it is not possible to run one Coda on RS-232 and the

other on RS-422.

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 161 162

Sin comentarios

Coda AMPLIFIER 15.0 Guía de usuario Pagina 14